.box {
    width: 800px;
    height: 600px;
    margin: auto;
    border: 1px solid #eee;
}
.box .top_feedback{
    position: relative;
    height: 30px;
    line-height: 30px;
    box-shadow: 0px 2px #E2E2E2;
    i {
        position: absolute;
        width: 8px;
        height: 20px;
        margin-top: 5px;
        margin-left: 5px;
        background-color: #1686EE;  
    }
    span {
        margin-left: 20px;
    }
}
.box .content {
    margin: 20px 20px 0;
    height: 500px;
    padding-top: 20px;
    .proposal {
        padding-top: 20px;
    }
}